# US 11,298,802 B2 · Fixture of a repairing caliper > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,298,802 B2 - Document ID: US11298802B2 - Status: Granted - Kind: B2 - Application number: 16/817,558 - Filed: 2020-03-12 - Published: 2020-09-17 - Granted: 2022-04-12 - Earliest claimed: 2019-03-15 - Assignees: CITIC Dicastal Co., Ltd. - Applicants: CITIC Dicastal Co., Ltd. - Inventors: Aijun Sun; Ning Ma; Liqun Zheng - Web page: https://patentgrep.com/patent/US11298802B2 ## CPC - B25B 11/00: Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders (for holding or positioning work for welding, soldering, or cutting by applying heat locally B23K37/04; specially adapted to machine tools B23Q3/00) - B24B 41/005: {Feeding or manipulating devices specially adapted to grinding machines (feeding, loading or unloading work specially adapted to lapping machines B24B37/345)} - B24B 41/02: Frames; Beds; Carriages - G01B 3/20: Slide gauges - G01B 3/24: with open yoke, i.e. calipers - B25B: TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING - B24B: MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING (grinding of gear teeth B23F, of screw-threads B23G1/36; by electro-erosion B23H; abrasive or related blasting B24C; tools for grinding, buffing or sharpening B24D; polishing compositions C09G1/00; abrasives C09K3/14; electrolytic etching or polishing C25F3/00; grinding arrangements for use on assembled railway tracks E01B31/17); DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS - G01B: MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS ## Abstract The invention discloses a caliper repairing clamp, which relates to the technical field of calipers and comprises a machine body, wherein a polishing disc is arranged inside the machine body, a protective cover is arranged on the outer surface of the polishing disc, a moving table is arranged below the machine body, a polishing table is arranged above the moving table, a fixed table is fixedly connected to the upper surface of the polishing table, a first bearing is fixedly embedded inside the machine body, a rotating handle is arranged below the moving table, and a first threaded rod is fixedly connected to the upper surface of the rotating handle. ## Claims ### Claim 1 A fixture of a repairing caliper, comprising a machine body (1), wherein a grinding stone (3) is arranged in the machine body (1), the outer surface of the grinding stone (3) is provided with a protection cover (2), a movable table (4) is arranged below the machine body (1), a grinding table (5) is arranged above the movable table (4), and the upper surface of the grinding table (5) is fixedly connected with a fixing table (6), characterized in that the interior of the machine body (1) is fixedly inlaid with a first bearing (7), a rotating handle (9) is arranged below the movable table (4), the upper surface of the rotating handle (9) is fixedly connected with a first thread rod (8), the interior of the movable table (4) is fixedly connected with a first thread ring (10), the top end of the first thread rod (8) penetrates an inner ring of the first thread ring (10) and extends to the upper side of the movable table (4), and the inner ring of the first thread ring (10) is threadedly connected to the outer surface of the first thread rod (8), the top end of the first thread rod (8) is fixedly connected to an inner ring of the first bearing (7), the bottom surface of the machine body (1) is fixedly connected with two symmetrical polished rods (11), the interior of the movable table (4) is fixedly connected with two symmetrical slip rings (35), the upper surface of the movable table (4) is provided with a first chute (14), the bottom surface of the grinding table (5) is fixedly connected with a first sliding block (13) adapted to the first chute (14), and the first sliding block (13) is slidably connected to the interior of the first chute (14); and the middle part at the bottom surface of the fixing table (6) is provided with a through hole (19), the upper surface of the through hole (19) is fixedly inlaid with a second bearing (20), a rotating round bar (21) is arranged above the fixing table (6), the bottom surface of the rotating round bar (21) is fixedly connected with a second thread rod (22), the bottom end of the second thread rod (22) penetrates the fixing table (6) and fixedly connected to an inner ring of the second bearing (20), the outer surface of the second thread rod (22) is threadedly connected with a second thread ring (23), the left and right side surfaces of the second thread ring (23) are both fixedly connected with fixing rods (24), the bottom surfaces of the fixing rods (24) are fixedly connected with supporting rods (25), the bottom end of each of the supporting rods (25) is fixedly hinged with a pulley (26) through a pin shaft, the upper surface of the grinding table (5) is provided with two symmetrical second sliding groove (29), the interior of the fixing table (6) is provided with two symmetrical movable blocks (30), the side surfaces of the two movable blocks (30) departing away from each other are in contact with the outer surfaces of two pulleys (26) respectively, the side surfaces of the two movable blocks (30) approaching to each other are fixedly connected with cross rods (32), the ends of the two cross rods (32) approaching to each other both penetrate the fixing table (6) and extend to the interior of the through hole (19), and the end of each of the cross rods (32) departing away from the movable block (30) is fixedly connected with a stationary clamp (34). ### Claim 2 (depends on 1) The fixture of a repairing caliper according to claim 1, characterized in that the bottom end of each of the polished rods (11) penetrates the inner ring of the slip ring (35) and extends to the lower side of the movable table (4), the inner rings of the slip rings (35) are slidably connected to the outer surfaces of the polished rods (11), and the bottom and top ends of each of the polished rods (11) are both fixedly connected with stop blocks (12). ### Claim 3 (depends on 1) The fixture of a repairing caliper according to claim 1, characterized in that the right side surface of the movable table (4) is fixedly connected with a fixing plate (15), a rotating disc (17) is arranged above the fixing plate (15), the right side surface of the rotating disc (17) is fixedly connected with a handle (16), and a connecting rod (18) is arranged above the rotating disc (17). ### Claim 4 (depends on 1) The fixture of a repairing caliper according to claim 1, characterized in that the interior of the fixing table (6) is fixedly connected with two symmetrical sliding bars (27), the outer surface of each of the sliding bars (27) is slidably connected with a sliding sleeve (28), and the side surfaces of the two sliding sleeves (28) approaching to each other are respectively fixedly connected to the ends of the two fixing rods (24) departing away from each other. ### Claim 5 (depends on 1) The fixture of a repairing caliper according to claim 1, characterized in that the bottom surface of each of the movable blocks (30) is fixedly connected with a second sliding block (31) adapted to the second chute (29), and the second sliding block (31) is slidably connected to the interior of the second chute (29). ### Claim 6 (depends on 1) The fixture of a repairing caliper according to claim 1, characterized in that the outer surface of each of the cross rods (32) is sleeved with a spring (33), the ends of the two springs (33) departing away from each other are respectively fixedly connected with the side surfaces of the two movable blocks (30) approaching to each other, and the ends of the two springs (33) approaching to each other are respectively fixedly connected with the left and right side surfaces of the through hole (19).